ZSHO pneumatic piston O-off valve (referred to as the cut off valve) is a rotary cutting ball valve, pneumatic unit in the instrument cluster execution unit, generally in combination with the pneumatic components such as solenoid valves use. Soft sealing valve seat mounting structure and Two all-metal seat, respectively, for normal temperature (-40 ~ 180 ℃) and high temperature (-60 ~ 450 ℃) occasions. The product high transmission efficiency, thrust, good sealing performance, rated flow coefficient, interchangeable parts, and other characteristics. Gas which is widely used in petroleum, chemical, pharmaceutical, metallurgy, textile, paper, sewage treatment and other production departments, the liquid medium in the pipeline cut off or turned on, in order to achieve the production process according to certain procedures. Off valve consists of a pneumatic piston actuator and a cut-off valve of two parts, according to user needs can also be configured handwheel mechanism between actuator and valve off.

Established in 2012,Hangzhou Niuzhuo Valves Industrial Co., LTD. is a manufacturer and exporter that is concerned with the design, development and production of valves.
HZNZ is located in Hangzhou, with convenient transportation axxess.Covering an area of 13000 square meters, HZNZ now have about 100 employees, an annual sales figure that exceeds USD 7.7 million and are currently exporting 22% of our production worldwide.
All of our products comply with international quality standards and are greatly appreciated in a variety of diffrent markets throughout the world.
As a result of our high quality products and outstanding customer service, we have gained a global sales network reaching Korea , Thailand, Malaysia,Mid East and more.
If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.